16 lines
406 B
JavaScript
16 lines
406 B
JavaScript
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// Copyright 2020 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax
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Object.prototype[1] = 1;
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function foo(baz) {
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return 1 in arguments;
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}
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assertTrue(foo(0));
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%PrepareFunctionForOptimization(foo);
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assertTrue(foo(0));
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%OptimizeFunctionOnNextCall(foo);
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assertTrue(foo(0));
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